Matheus Maxxt
type: MusicGroup
genre: boom bap
popularity: 10
followers: 239
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6acfcee83a80290150977227e214d26a6d1e0471fd7ce017a00e857193f0c43d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80b5a8fc-0786-4e5a-9d5d-390108b55a90.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/80b5a8fc-0786-4e5a-9d5d-390108b55a90.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/80b5a8fc-0786-4e5a-9d5d-390108b55a90
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6acfcee83a80290150977227e214d26a6d1e0471fd7ce017a00e857193f0c43d","name":"Matheus Maxxt","registered_at":"2026-06-17T10:33:22Z","symbol":"NIM1368140","token_address":"0xd17e1b763c5c4ff27ad8eb35e53d459cdb84454c","type":"artist","uuid":"80b5a8fc-0786-4e5a-9d5d-390108b55a90"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acfcee83a80290150977227e214d26a6d1e0471fd7ce017a00e857193f0c43d. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/80b5a8fc-0786-4e5a-9d5d-390108b55a90.json and https://artists.proofprofile.net/proofs/artist/80b5a8fc-0786-4e5a-9d5d-390108b55a90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x6acfcee83a80290150977227e214d26a6d1e0471fd7ce017a00e857193f0c43d","name":"Matheus Maxxt","registered_at":"2026-06-17T10:33:22Z","symbol":"NIM1368140","token_address":"0xd17e1b763c5c4ff27ad8eb35e53d459cdb84454c","type":"artist","uuid":"80b5a8fc-0786-4e5a-9d5d-390108b55a90"}
album: Cali
  type: MusicAlbum
  date published: 2023-12-14
album: Sobre a Falta de Afeto
  type: MusicAlbum
  date published: 2024-07-18
album: Menino do Júlio
  type: MusicAlbum
  date published: 2024-08-29
album: Sade
  type: MusicAlbum
  date published: 2025-08-01
  track: Sade
    type: MusicRecording
    duration: PT3M45S
    duration ms: 225000
    explicit: true
    by artist: Matheus Maxxt
    in album: Sade
      type: MusicAlbum
      date published: 2025-08-01
    genre: boom bap
    isrc code: BKX072500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T14:56:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe32cb82cd97c1c286e5d4216a18ab2a047a0b69aa5cc3ae678ad60f73ea8fa96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958567
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958567
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKX072500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T15:22:40Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32cb82cd97c1c286e5d4216a18ab2a047a0b69aa5cc3ae678ad60f73ea8fa96. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKX072500001.
      date published: 2026-07-18T15:22:40Z
    audio: Sade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.248
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.601
      additional property: Energy
        type: PropertyValue
        value: 0.604
      additional property: Speechiness
        type: PropertyValue
        value: 0.404
      additional property: Acousticness
        type: PropertyValue
        value: 0.563
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.302
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.652
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.916
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major